Member Since: 11 Dec 2011
Location: Hillsborough
Posts: 11
EPB / longitudinal acceleration sensor
Help ! I have an intermittent problem with my EPB in mornings it flashes park brake fault and then the yellow brake light stays on, it only does this overnight. So I brought it to private Lr guy and he plugged it in and it is the longitudinal acceleration sensor fault but it will not take intsruction from the computer to calibrate itself ! So got electrician to check out power to epb unit and all is fine now my Lr guy says that I need a new EPB unit !! Bit but park brake works fine and shoes and cables all in good condition ! Has anyone heard of this before ? Plz help bit peeved !!Supercharged grill, Economy chip, Chrome pack
24th Oct 2012 7:18 pm
newman4x4
Member Since: 31 Jul 2010
Location: 07100 BOULIEU
Posts: 13
Hi,
Did you get to the bottom of this, I have the exact same problem, did the sensor need changing?
Thanks.
Alex.
1st Oct 2018 9:14 am
L319
Member Since: 14 Dec 2013
Location: Herefordshire
Posts: 2080
EPB light can be illuminated with none park brake faults . May be worth seeing if anyone local has a IID to check for you.
1st Oct 2018 6:39 pm
newman4x4
Member Since: 31 Jul 2010
Location: 07100 BOULIEU
Posts: 13
Got this one :
• C1A40-02 (A8) Longitudinal acceleration sensor - General failure information - general signal failure
And calibration with IID fails. So I was wondering before changing the sensors if it could be electric loom related.
Alex.
2nd Oct 2018 7:43 am
Disco_Mikey
Member Since: 29 May 2007
Location: Dundee, Scotland
Posts: 20733
The module will not calibrate if it isn’t not mounted correctlyMy D3 Build Thread
Member Since: 31 Jul 2010
Location: 07100 BOULIEU
Posts: 13
Thanks, will check it asap.
2nd Oct 2018 9:35 am
newman4x4
Member Since: 31 Jul 2010
Location: 07100 BOULIEU
Posts: 13
Finaly got the car back in the shop, and yes the EPB module wasn't fix proparly. it has been changed by previous garage and it wasn't sitting on its bottom bushes.
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